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(1/2)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/31/2025 10:02 PM America/New_York.
Valid through 7/1/2025 4:00 AM America/New_York.
fzus63 kmqt 010202
glfls
expires:202507010800;;671622
open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon jun 30 2025
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.8 inch trough remains over lake superior through tuesday night
as the lake becomes sandwiched between a 30.0 inch high descending
southeast over the plains and a low over quebec deepening from 29.5
to 29.3 inches. 30.0 inch ridging then passes southeast over the
upper great lakes thursday into friday. then, low pressure emerging
from the northern rockies into central canada brings a 29.6 inch
trough through lake superior saturday into sunday.
lsz162-010800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt mon jun 30 2025 /901 pm cdt mon jun 30 2025/
.rest of tonight...west winds 10 to 20 knots. waves calm to
2 feet.
.tuesday...west winds 10 to 20 knots backing southwest in the
afternoon. waves building to 1 to 3 feet.
.tuesday night...southwest winds 10 to 20 knots veering west
after midnight. waves subsiding to calm to 2 feet.
.wednesday...west winds 10 to 20 knots. a slight chance of
showers. a slight chance of thunderstorms by mid afternoon. waves
calm to 2 feet.
.wednesday night...west winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet.
.thursday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet.
.thursday night...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. a chance of showers and
thunderstorms. waves calm to 2 feet.
.friday...east winds 5 to 15 knots becoming south 10 to 20 knots.
a chance of showers. a chance of thunderstorms. showers. waves
calm to 2 feet.
.saturday...southwest winds 10 to 20 knots veering west. showers
likely. a chance of thunderstorms. a chance of showers. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet.
$$
(2/2)
Latest Great Lakes Marine Forecast by KMQT
Issued 5/31/2025 10:02 PM America/New_York.
Valid through 7/1/2025 4:00 AM America/New_York.
fzus63 kmqt 010202
glfls
expires:202507010800;;671623
open lake forecast for lake superior
national weather service marquette mi
1001 pm edt mon jun 30 2025
for waters beyond 5 nautical miles of shore on lake superior.
waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.
.synopsis...
a 29.8 inch trough remains over lake superior through tuesday night
as the lake becomes sandwiched between a 30.0 inch high descending
southeast over the plains and a low over quebec deepening from 29.5
to 29.3 inches. 30.0 inch ridging then passes southeast over the
upper great lakes thursday into friday. then, low pressure emerging
from the northern rockies into central canada brings a 29.6 inch
trough through lake superior saturday into sunday.
lsz263-010800-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1001 pm edt mon jun 30 2025
.rest of tonight...west winds 5 to 15 knots. waves calm to 2 feet
building to 1 to 3 feet, then subsiding to calm to 2 feet.
.tuesday...west winds 5 to 15 knots becoming southwest 10 to
20 knots in the afternoon. a slight chance of showers by mid
afternoon. waves building to 2 to 4 feet.
.tuesday night...west winds 10 to 20 knots diminishing to 5 to
15 knots late. waves subsiding to calm to 2 feet.
.wednesday...west winds 5 to 15 knots. a slight chance of
showers. waves calm to 2 feet.
.wednesday night...west winds 5 to 15 knots becoming northeast
less than 10 knots after midnight. waves calm to 2 feet.
.thursday...east winds 5 to 15 knots. waves calm to 2 feet.
.thursday night...east winds 5 to 15 knots veering south after
midnight. a chance of showers after midnight. waves calm to
2 feet.
.friday...southeast winds 5 to 15 knots becoming south 10 to
20 knots. a chance of showers. a chance of thunderstorms. showers
likely. waves building to 1 to 3 feet.
.saturday...southwest winds 10 to 20 knots becoming west 5 to
15 knots. showers likely. a chance of thunderstorms. a chance of
showers. waves subsiding to calm to 2 feet.
$$
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